OpenLISEM Flash Flood Modelling Application in Logung Sub-Catchment, Central Java

https://doi.org/10.22146/ijg.9252

Fitrie Atviana Nurritasari(1*), Sudibyakto Sudibyakto(2), Victor G. Jetten(3)

(1) Geo-Information for Spatial Planning and Disaster Risk Management, Graduate School of Universitas Gadjah Mada
(2) Faculty of Geography, Universitas Gadjah Mada
(3) Applied Earth Science Department, Faculty of Geo-Information Science and Earth Observation, University of Twente, The Netherlands
(*) Corresponding Author

Abstract


Juwana Catchment and Logung Sub-catchment in particular has been suffering several major past flood events with significant loss. This study conducted an assessment of flood risk by using OpenLISEM as physical soil and hydrological model to generate the single storm flash flood occurrences. The physical input data were collected from remote sensing image interpretation, field observation and measurement and literature review. There are three return periods chosen as scenarios that represent rainfall intensity in Logung Sub-Catchment. Model validation was done by adjusting initial moisture content and saturated hydraulic conductivity values to equate the calculated total discharge with the measured total discharge in several chosen dates. The results show increases in most of modeled hydrological parameter with respect to increasing of rainfall intensity.


Keywords


OpenLISEM;Flash flood modeling;Flood hazard assessment;Logung Sub-Catchment

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DOI: https://doi.org/10.22146/ijg.9252

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Accredited Journal, Based on Decree of the Minister of Research, Technology and Higher Education, Republic of Indonesia Number 30/E/KPT/2018, Vol 50 No 1 the Year 2018 - Vol 54 No 2 the Year 2022

ISSN 2354-9114 (online), ISSN 0024-9521 (print)

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